﻿using System;
using System.Collections.Generic;
using System.Text;

namespace csharpcore7_ch3
{
   public class Util
    {
        public static object GetCountDown() => new csharpcore7_ch3_Interface.CountDown();

        public static void Swap<T>(ref T a, ref T b)
        {
            T temp = a;
            a = b;
            b = temp;
        }
    }
}
